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Spark Plugs and SC #318635 Nov 5, 7:19am Nov 5, 7:19am
Joined: Feb 2003
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West Chester, Ohio
2002 Liquid Silver Metall Toyota Celica GT SLVCELI OP
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West Chester, Ohio
Spark Plugs and SC
I am getting the TRD SC soon. For the corolla and matrix they suggest using denso iridium ik20 spark plugs. Is this what I would use? I also heard people talking about the ik22's.


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Re: Spark Plugs and SC [Re: SLVCELI] #318636 Nov 5, 10:43am Nov 5, 10:43am
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West Chester, Ohio
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eek


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Re: Spark Plugs and SC [Re: SLVCELI] #318637 Nov 5, 12:37pm Nov 5, 12:37pm
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Southern California
Illusive
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Originally Posted by SLVCELI
I am getting the TRD SC soon. For the corolla and matrix they suggest using denso iridium ik20 spark plugs. Is this what I would use? I also heard people talking about the ik22's.

colder plugs=less power (higher number = colder plug)
BUT
colder plugs = less detonation = avoiding a blown engine.

If you decide to upgrade the pully and run more boost later on the colder plugs will help to avoid detonation.


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Re: Spark Plugs and SC [Re: Illusive] #318638 Nov 5, 12:50pm Nov 5, 12:50pm
Joined: Aug 2003
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Pomona, CA
Virgilson
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Originally Posted by Illusive
Originally Posted by SLVCELI
I am getting the TRD SC soon. For the corolla and matrix they suggest using denso iridium ik20 spark plugs. Is this what I would use? I also heard people talking about the ik22's.

colder plugs=less power (higher number = colder plug)
BUT
colder plugs = less detonation = avoiding a blown engine.

If you decide to upgrade the pully and run more boost later on the colder plugs will help to avoid detonation.



good stuff.

Re: Spark Plugs and SC [Re: Virgilson] #318639 Nov 5, 1:55pm Nov 5, 1:55pm
Joined: Jun 2004
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San Diego, CA
Sancho
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^^I did not know that. I thought the larger numbers gave more current. confused

Great info! thumbsup Probably upgrade my plugs for better performance. New ignition wires and solenoid, too. Nology, probably. Not for a while.


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Re: Spark Plugs and SC [Re: Sancho] #318640 Nov 5, 2:13pm Nov 5, 2:13pm
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Illusive hit it on the head. Run colder plugs

Re: Spark Plugs and SC [Re: Sancho] #318641 Nov 5, 4:22pm Nov 5, 4:22pm
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Los Angeles, CA
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Originally Posted by Sancho
^^I did not know that. I thought the larger numbers gave more current. confused

Great info! thumbsup Probably upgrade my plugs for better performance. New ignition wires and solenoid, too. Nology, probably. Not for a while.


what is meant by hotter/colder is the effect the plugs have in the combustion chambers by their ability to dissipate heat. so hotter means less heat dissipation, and colder means more heat dissipation. more heat/pressure = TENDENCY toward more detonation.

When you say I upgrade I hope you mean with a turbo, and by upgrade you would then mean colder plugs, right? If you are going to stay N/A, do not "upgrade" by going to hotter plugs. Unless you plan on running 100 octane on the street, etc to decrease the increased risk of detonation.


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